Dear Khun Pramote,
As per our telephone discuss that we would like to have the detailed for waster management. Kindly provide the following documents:
1. You company profile
2. Sample contract
3. The method for treatment our waster which is "Oil contamination with sludge, crude-oil, wax and sand"
4. Sample Manifest
5. Sample certificate for waster management.
6. Also your best rate quotation ka.
Looking forward to your prompt response.